Third to george grime



lNoModel.) J T BOLTON 3 Sheets-Sheet 1. L-APPBT Loom.

No 561,647. Patented June 9, 1896.

INVENTUR.

WITNESSES. I I MW imndvwfi yfi ANDREW B.GRAHAM.PNOTO'UIHQWASMNGZOHJL.

{No Model.) I 3 Sheets-Sheet; 3.

J.T.BOLTON, v

LAPPET LOOM. I

No 561,647. I Patented June 9, 1896.

DNDRCW BiRAKAI'LPHQTOUTHQWASHINGTDNDL PATENT FFlQEa JOHN T. BOLTON, OFFALL RIVER, MASSACHUSETTS, ASSIGNOR OF ONE- THIRD TO GEORGE GRIME, OFSAME PLACE.

LAPPET-LOOM.

SPECIFICATION forming'part Of Letters Patent NO. 561,647, dated. June 9,1896. Application filed Oc be 18, 1895. Serial No. 5 66,070. (No model.)

To all whom it may concern:

Be it known that I, JOHN T. BOLTON, of Fall River, in the county ofBristol and State of lilassachusettsdiave invented certain new anduseful Improvements in Lappet-Looms; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

This invention relates to that class of looms called lappet-loomsg andit consists of improvements on the invention disclosed in my applicationfor Letters Patent filed April 1:, 1895, SerialNo. 5 14AM. Itis fullyexplained and illustrated in this specification and the aceompanyin gdrawings.

Figure l is a front elevation of a loom, showing the lathe, thedevicesattached to it, and some of the other parts. Fig. 2 is a hackelevation of one end of the lathe, showing the cam-moving connectionwith the lathe. Fig. 3 is a diagram showing the parts connecting theneedle-bars and guide-wire bar and the crank-shaft and cam-shaft of theloom. Fig. l is an enlarged vertical section of the lathe andtheneedle-bars, taken on line 0090, Fig. 1, looking to the left. Fig. 5is an enlarged section. of the cam-case and its mechanisms, takenvertically through the center of the case on line a c, Fig. 1. Fig. 6 isan enlarged view of the ratchet-rill g. Fig. 7 is an enlarged view ofone of the cams with its connecting-plate. 8 shows a section of theslack take-up on line Fig. 1. Fig. i) represents a top View, enlarged,of parts of the sliding needle-bars, showing the racks and gear by whichone moves the other and a horizontal section of the cam-case and asingle cam to operate the bars.

The mechanism of the improvement is adapted to be attached to loomsalready in use for plain weaving, using either one or more shuttles andharnesses. Its construction is as follows:

A is the lathe-beam of the loom.

O O are the swords that support the lathebeam.

D is an auxiliary yarn-beam that holds the yarn that forms the figureson the cloth. It is held in the supports R R, that extend up from theend frames of the loom.

B is the crank-shaft that operates the lathe.

' F is the cam-shaft.

J is the reed.

S S are two vertical rods, one at each side of the loom, sliding inhearings in the latheheam and also in guides s s on the lower parts ofthe swords G O. A top rodEis made fast at the left end to the upper endof one of the vertical rods S, Fig. 1, and at its right end it issecured to the case V, to the lower side of which the other vertical rodS is attached, so that when the rods S are moved up and down the rod Eand case V will move with them. Two flat plates H H are held movably ina mortise in the upper end of the vertical rod S, at the left side, andin an open ing in the case V, at their other ends, by extension-plates*1, that are attached one to each of the plates H H, and one of which isshown enlarged, with a portion of the case V and the cam P in Fig. '7,showing the hearing of the plate on that cam, and the other plate 7',part of which is shown in Fig. 3, bears in like manner on the cam P.These plates H H have needles '0 c, with eyes in their lower ends, setin their lower edges. The lower ends of the needles i; U are curvedtoward the dents of the reed (see Fig. 4:) to brin g the yarn in themclose to the reed thatwhen the weft is beaten in and the reed is clearforward the eyes of the needles will not be brought any farther forwardfrom the point on the web to which the yarn in the needles is attachedthan could be avoided, because of its stretching the yarn and figure outof shape.

The plates H H, with their needles t 't', have a motion endwise, whichthey receive from cams P P in the case V, a section of which is shown inFig. The case V consists of a rim of two flanges and a front plate r,made fast to the rim. A stud N extends through the center of the caseand has two cams P P made fast on it, and also plate P, that holds aratchet-rim T in a recess on its outside and a leather washer 'l" in arecess on its inner side. A plate Iis held free to turn on the stud Nand has an upright arm Y, that carries a pawl I, that engages in theteeth of the ratchet T. An open spiral spring 0 is held on the outer endof the stud N, and a nut N is fitted on the end outside of the spring toregulate the pressure of the spring on the case V, which causes afriction between the inner flange of the case and the leather washer Ton the plate P. The object of the friction of the washer T is to preventthe plate with the cams from going too far when pushed quickly by thepawl and also from following back when the pawl returns. The horizontalarm (Z of the plate I has a connecting-block e fitted to slide on it,and a set-screw in it to make it fast on the rod when set. A barf ispivoted at its upper end to this block, and its lower end is held on apin 1' in the lathe A, so that when the case V rises with the verticalbar S and raises the needles r out of the web the arm cZ will be drawndown by the bar, and the pawl I on the upright arm Y will push theratchet-rim over and move the needleplates II II endwise by the camsP Pand the plates 7, that are fast on the ends of the plates II II at theirinner ends, and have their outer ends bearing against the faces of thecams P P, with spiral springs t to draw the plates and oblige them tofollow the peripheryof the cams.

Toothed racks 1" are secured to the top of each plate H II, and a pinion0" is held on a stud y, adjustably secured to the top rod E, so as toengage with the racks r, and when one plate is moved endwise the pinionwill give a motion to the other plate in the opposite direction. In thiscase only one cam P is used. When the plates are required to movetogether or independently of each other,

the stud-block 'yis loosened, so as to slide on the rod E by unscrewingthe set-screw in the top of it. This allows cams of different forms tobe used at the same time to make combinations of different figures.

The vertical motion of the plates H II is limited to bringing the lowerends of the needles down to the lathe-beam, so that the shuttle with thefilling will pass over the yarn in the eyes of the needles, and upward,so that the needle-eyes will hold their yarn a little above the uppershed of the warp a that the shuttle may pass under it on its return.

The bar V, which is held at each .end on sleeves D, sliding on thevertical rods S S, has a series of vertical guard-wires n placed in itsupper side that stand at all times in holes made through the lathe-beamA. They are carried up by the bar V high enough above the beam to serveas guards to prevent the shuttle from falling back against thereed-dents when the needles t v are not down and from hitting theneedles when they are down.

The vertical bars S S and the parts they carry receive an up-and-downmotion, as follows: A crank B, made fast on the loom crank-shaft B, isconnected by a bar I) to an arm Z) on a rocker-shaft K, held in hearingsin the end frames for that purpose. (See Fig. 3.) Two arms h h, madefast in this shaft, are connected by rods 0 o to the sleeves D on therods S S, that'carrythe bar V ,with guide-wires '12 one arm to eachsleeve. A sleeve K is held on the shaft K, and an arm 7t, fast on thesleeve K, extends downward and hasa friction-roll in its lower end thatbears on a cam F, fast on the loom cam-shaft F, which gives motion tothe sleeve K, and by means of two arms h h, fast on the sleeve K andconnected by bars j j with the lower ends of the vertical rods S S, anup-and-down motion is given to those rods and parts carried by them.(See Figs. 1 and 3.)

To take up the slack in the yarns e made by the needles 1: '0 going downand drawing yarn off of the beam D, two cords Z Z are attached by eyes 6e to the supports R R between the beam and needles. These cords are heldapart by the pieces Z Z a little distance in from the end and twist thecords together between the pieces Z and the eyes. Then by conducting theyarns 0 between these cords the twist in the end portion will turn thecords and take up any slack that may be made in them. (See Figs. 1 andS.) The tension on the cords can be increased or diminished by pushingthe pieces Z nearer to or farther from the eyes 6.

Having thus described my improvements, I claim as my invention anddesire to secure by Letters Patent- 1. In a loom, the combination withthe lathe of vertical sliding bars having bearings in the lathe-beam andon the swords below, a top bar connecting the upper ends of saidvertical sliding bars, plates sliding at one end in mortises in theupper end of one of said vertically-slidin-g bars, and at their otherend sliding in a case attached to the other vertical sliding bar, saidcase, needles in the lower edges of said plates, toothed racks fast onsaid plates, a gear-wheel held on said top bar and engaging with theracks, a ratchet-wheel and a cam fast to each other and to a pivot heldloosely in the front plate of the case attached to said sliding bar, endplates fast 011 said sliding plates and bearing against the cam, a leverheld on the ratchet-wheel pivot and having a pawl on its upper endengaging in the ratchet-wheel, a connecting-bar fast to said lever andconnected 'to the lathe to operate said lever and pawl, with means foroperating said vertically-sliding bars, substantially as described.

2. In a loom, the combination with the lathe of vertical sliding barshaving bearings in the lathe-beam and on the swords below, a top barconnecting the upper ends of said vertical sliding bars, plates slidingat one end in mortises in the upper end of one of said ver tical slidingbars and at their other ends sliding in a case attached to the othervertical sliding bar, said case, needles in the lower edges of saidplates, toothed racks fast on said plates, a gear-wheel held on said topbar and engaging with the racks, a ratchet-wheel and a cam, fast to eachother and to a pivot loosely pins in its upper side and sliding on saidver- 10 held in the front plate of the case attached tieally-slidingbars with means for sliding to said sliding bar, end plates fast on saidsaid vertical bars, and said cross-bars indesliding plate and bearingagainst the came, a pendently, substantially as described.

5 lever held on the ratchet-Wheel pivot and having a pawl on its upperend engaging in JOHN T. BOLTON. the ratchet-Wheel, a connecting-bar fastto lVitnesses: said lever and connected to the lathe to 0p- BENJ.ARNOLD,

' erate said lever and pawl, a cross-bar having 1 J. W. RICHARDSON.

